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Why is the Peak Value and Crest Factor Unstable?

The peak value and crest factor may be unstable if they have not been captured accurately. If the peak value is not stable, neither will the crest factor be stable. The cause is the difficulty in capturing the narrow spiked peaks of single-shot phenomena with high accuracy.
  1. The WT's sampling speed is from a few dozen kHz to several hundred kHz. The peak values of signals whose peaks are more narrow than this may not be captured by the WT. On the other hand, if it is a repeating, stable peak signal, the WT has a good chance of capturing it.

  2. For rising peak signals having components that are higher than the WT's bandwidth, the peak is attenuated by analog bandwidth restriction. Therefore the peak value may not be captured by the WT.

相关产品和解决方案

功率分析仪 WT500

中等量程的WT500小巧且便于使用。使用其彩色TFT显示器可以观测数值和波形测量。提供1到3个输入单元,基本功率精度为0.1%,带宽为100kHz。

高性能功率分析仪 WT1800系列

高端WT1800是WT1600的升级产品,可应用于从节能到高负载应用在内的各种应用领域。WT1800拥有6单元输入能力,可提供最大的灵活性和5MHz带宽下0.1%的基本功率精度。

高精度功率分析仪 WT3000

WT3000高精度功率分析仪提供最高精度的测量。此产品已成为行业标准,用于变频器、电机驱动器、照明系统和电子镇流器、UPS系统、飞机电力系统、变压器测试和其它电力转换设备的研发。WT3000的基本功率精度达0.02%,带宽为1MHz。

数字功率分析仪

功率计或称瓦特计,可以测量产生、转换或消耗电能的设备各项特征,包括设备的各项参数,如:功率(瓦特)、功率因数、谐波和效率等等。

YOKOGAWA数字功率分析仪,性能优越、测量可靠,支持各种应用,非常值得拥有。尤其是YOKOGAWA WT300E功率计,已经在全球功率计市场份额上遥遥领先。

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